~x-ai/grok-latest → B (3:2)

B’s lasting value is the architectural shift that keeps full Reddit entity JSON out of the in-memory GlobalTree (new EntityStore on RocksDB via workspace durable) and replaces load_all with line-at-a-time event_log.replay, which directly cuts startup RAM and scales the core data path. A is strong product work (Reddit OAuth, UUID-canonical linking, private linked-providers UI and trust-weight/batch fixes), but it extends auth rather than changing how the system stores and reconstitutes principal data; B’s huge line count is largely the vendored durable crate, yet the server-facing storage/replay change is the more foundational, durable improvement.